The materials used in this harness are carefully selected to ensure safety and comfort for your dog. Breathable air mesh, 3M reflective fabric, high density nylon webbing, and lightweight aviation aluminum fittings make this harness a reliable choice for any dog owner. In addition, the camouflage pattern adds a touch of style while the Duraflex® PC buckle and aluminum fittings provide strength and convenience. Please note that sizes on the chart refer to dog sizes and may have a 2-3 cm error due to measurement methods. For added safety, the harness features a special hook for Truelove LED lights for night travel.